Finite Impulse Response (FIR) Filters Infinite Impulse Response (IIR) Filters Multirate Filters Adaptive Filters DIGITAL FILTERS SECTION 6 DIGITAL FILTERS I Finite Impulse Response (FIR) Filters I Infinite Impulse Response (IIR) Filters I Multirate Filters I Adaptive Filters 6.a DIGITAL FILTERS 6.b DIGITAL FILTERS SECTION 6 DIGITAL FILTERS Walt Kester INTRODUCTION Digital filtering is one of the most powerful tools of DSP. Apart from the obvious advantages of virtually eliminating errors in the filter associated with passive component fluctuations over time and temperature, op amp drift (active filters), etc., digital filters are capable of performance specifications that would, at b……